Alessandra Ambrosio's Instagram is reliable for a few things: bikinis, gorgeous beaches, and sexy photos. The Brazilian supermodel is not shy when it comes to getting in a skimpy swimsuit and posing for the camera — she did make her fame by walking down the runway of the hottest show in Victoria's Secret lingerie — and we don't blame her. The mom of two has a crazy-toned body. Need proof? See her sexiest bikini pictures, then check out her workout style.